Retort



S. B. MATHEWSON ET AL Jan. 29, 1929.

RETORT Filed Feb. 15, 1924 2 Sheets-Sheet ATTORNEYS MUKZEDIE Jan. 29, 1929. 1,700,684-

s. B. MATHEWSON ET AL RETORT Filed Feb. 15. 1924 2 Sheets-Sheet 2 Patented Jan. 29,1929.

v ST

TEAS" PATENT ioFFicE.

STANLEY B. MATHEWSON, OF SPRINGFIELD, AND WALTER K. JAMISON, OF IIJAY'IL'OIN',

OHIO, 'ASSIGNORS, TO STANLEY B. MATHEWSON, WALTER K. JAMISON, HOWARD F. MABSTON, (MRS) S. B. MATHEWSON, AND (MRS) W. K. JAMISON, TRU$TEES, OI THE LECAB CARBON COMPANY, A TRUST ESTATE, OF SPRINGFIELD, OHIO;

nn'rom; T

Application filed February 15,1924. Serial No. 883,058.

Our invention relates to an apparatus for converting certain raw materials into carbonizing materials and collecting the byproducts, or utilizing them. v

Our invention has for itsobjectthe rapid and economical handlin'gfof such material .as scrap leather when treating it to convert it into a carbon material containing certain volatile gases. This material is used for case 'hardeningmetals, filtering oils and sugars, and a variety of-other applications; It is. more fully set forthand described in our Patent No. 1,471,563 of October 23, 1923,

It is a further objectof' our invention to provide means of uniformly treating the scrap leather with heat, of preventing the access of air thereto during the heating operation, of conveying away such gases that are generated, of retaining the gases in the material or in. the presence thereof, and of permitting the reabsorption of such gases so retained as-thematerial cools.

1 It is a further object to provide means of readily handling in easily managed units the containers for such material. It is an object to provide means by which the containers can be accommodated to the amount of material. It is a further object to provide means of safely conveying the gases awa from the oven to apoint where the by-pro ucts can be abstracted or the gases used for fuel purposes, or both.

Referring tothe drawings Figure 1 is a plan view of theoven and stacks with the cover of the oven removed.

Figure 2 is an end elevation of the oven with the front wall removed. 1

Figure 3 is a side elevation of the oven and the containers with the side wall re-' moved.

Figure 4 is the detail of the tops of the containers and the pipe connections, t

Figure 5 is an end elevation of one of the containers. a Figure 6 is a side elevation of one of the containers. Fig. 6 is a detail view of a clamp in posisu porting and transporting the containers igure-8 is a side elevation of the truck. Figure 9 is an end elevation of. the truck.

Figure 10 is a side elevation of the furnace with the side wall removed.

' Referring'to the drawings in detail:

1 is a front wall of the oven, 2 and. 3 are the side walls, and 4 is the rear wall. Adjacent to the rear wall is the furnace compartment 5 shown in elevation in Figure 10. This furnace is provided with furnace doors 6 and the furnace wall 7 for the introduction of fuel therein. Any furnace of conventional character may be employed so that the heat from the furnace may pass upwardlyover the bafiie Wall 8, through the opening 9', into the oven compartment 10, beneath the roof 11. The heatfrom the' furnace passes through the oven around the containers to the remote end of the oven, at which point it passes downwardly into the flue 12, beneath the floor '13 of the oven and thence into the passageway 14 and upthe stack 15. .This arrangement is such that the heat must pass completely" around all of the containers, uniformly treatin all of them. The passageways 12' are provi ed on either side of the oven so that there lvlvillgbe an even exit and distribution of the The scra leatheriis placed in the containers 16 and t ese containers are placed on end upon the trucks. The trucks are composed of channel members and I-beams, forming a frame designated 17. On the frame are angle irons 18 to prevent lateral movement of thecontainers on the truck. A' running gear consisting of the axles 19 and the'ffla nge'wheels 20 is provided. The containers are then wheeled into the ovens and have connected to vents 21 the vertical pipes 22 and T or L- shaped couplings 23. These-couplings are connected in'turn to branch pipes 24,which are united to the main pipes 25. These main pipes 25 are conveyed ,at right angles as at 26 through the side walls of the ovens out of the ovens, so that the by-product gases may be scrubbed, chemically treated, and

' finally used, if desired, as fuel in the furnace of the oven, or for a similar purpose,

The containers are provided with midribs or flanges 27 which are clamped together as by clamps 27 A having the screw bolts 27 B for tightly holding the flanges together.

It will thus be seen that our invention provides the desirable feature of treating the leather in some conditions in small units, so

that the heat can be uniformly applied and so that the containers can be readily handled. It also provides a ready means of conveying away the by-product gases without permitting the access of air to the leather when being treated.

It will be apparent that there may be a variety of modifications of the furnace, containers and piping, but we desire to comprehend within our invention such suitable modifications to meet varying conditions.

We have found the foregoing to be the preferable method of handling and arranging such a paratus, when following the batch metho of our process for producing our product. It is obvious that the pipe may be suspended by. hangers from the roof of the oven, so that only certain portions of it need to be moved when the containers are detached and removed from the oven.

The containers are divided'in halvesso that when they are closed the flanges 27 will abut.

Having thus fully describedour invention, what we claim as new and desire to secure by .Letters' Patent, is:

1. In an apparatus of the character described, an oven chamber having a floor with a chamber for circulation of gases below the ,fioor and contiguous thereto, a furnace at the rear of said oven chamber with means communicating the furnace with the upper part of the oven chamber and flues at the front of the oven chamber connecting the interior of the oven chamber with the chamber below the oven chamber floor, an escape stack for the heated gases connected with the chamber befloor and contiguous thereto, alfurnace atthe rear of said oven chamber with means communicating the'furna'ce with the upper part of the oven chamber and fluesat the front of the oven chamber connecting the interior. of

the oven chamber with the chamber below the oven chamber floor, an escape stack for the 1 heated-gases connected with the chamberbelow the floor at the rear of the over chamber and a system of pipes in the upper part -0 the oven chamber leading to the outside and closed to the air of the oven chamber, and containers within the oven chamber also closed to the air of the oven chamber" and 'at tachable to the pipesr 3. In an apparatus of the charaeterjdescribed, an oven chamber havinga floor with a chamber for circulation of gases below the floor and contiguous thereto, a furnaceat the rear' of said oven chamber with means com- -municating the furnace with the upper a'rt: l

of the oven chamber, flues "at the front 0 the oven chamber connecting the interior of the oven chamber with the chamber'b'elow-the oven chamber floor, an escape stack for the" heated gases connected with the chamber below the floor at-the rear of the oven chamber, said oven chamber containing a system of piping closed to the air of the oven chamber,-

and sealed containers within the oven cham-i her in communication with the piping sya t'em each of said containers comprising-upper and lower sections with means for clamping thesections together. H

tures.

WALTER K. JAMISON.

In testimony whereof. we aflixour STANLEY B. MATHEWSONJQJQ i 

